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Message-Id: <20230405200729.632435-10-martin.blumenstingl@googlemail.com>
Date:   Wed,  5 Apr 2023 22:07:29 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     linux-wireless@...r.kernel.org
Cc:     Yan-Hsuan Chuang <tony0620emma@...il.com>,
        Kalle Valo <kvalo@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-mmc@...r.kernel.org, Chris Morgan <macromorgan@...mail.com>,
        Nitin Gupta <nitin.gupta981@...il.com>,
        Neo Jou <neojou@...il.com>, Pkshih <pkshih@...ltek.com>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Larry Finger <Larry.Finger@...inger.net>,
        Pali Rohár <pali@...nel.org>,
        Simon Horman <simon.horman@...igine.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH v5 9/9] wifi: rtw88: Add support for the SDIO based RTL8821CS chipset

Wire up RTL8821CS chipset support using the new rtw88 SDIO HCI code as
well as the existing RTL8821C chipset code.

Reviewed-by: Ping-Ke Shih <pkshih@...ltek.com>
Tested-by: Chris Morgan <macromorgan@...mail.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
Changes since v4:
- add Chris Morgan's tested-by (thank you!)

Changes since v3:
- add Ping-Ke's reviewed-by

Changes since v2:
- sort includes alphabetically as suggested by Ping-Ke
- add missing #include "main.h" (after it has been removed from sdio.h
  in patch 2 from this series)

Changes since v1:
- use /* ... */ style for copyright comments


 drivers/net/wireless/realtek/rtw88/Kconfig    | 11 ++++++
 drivers/net/wireless/realtek/rtw88/Makefile   |  3 ++
 .../net/wireless/realtek/rtw88/rtw8821cs.c    | 36 +++++++++++++++++++
 3 files changed, 50 insertions(+)
 create mode 100644 drivers/net/wireless/realtek/rtw88/rtw8821cs.c

diff --git a/drivers/net/wireless/realtek/rtw88/Kconfig b/drivers/net/wireless/realtek/rtw88/Kconfig
index 6b65da81127f..29eb2f8e0eb7 100644
--- a/drivers/net/wireless/realtek/rtw88/Kconfig
+++ b/drivers/net/wireless/realtek/rtw88/Kconfig
@@ -133,6 +133,17 @@ config RTW88_8821CE
 
 	  802.11ac PCIe wireless network adapter
 
+config RTW88_8821CS
+	tristate "Realtek 8821CS SDIO wireless network adapter"
+	depends on MMC
+	select RTW88_CORE
+	select RTW88_SDIO
+	select RTW88_8821C
+	help
+	  Select this option will enable support for 8821CS chipset
+
+	  802.11ac SDIO wireless network adapter
+
 config RTW88_8821CU
 	tristate "Realtek 8821CU USB wireless network adapter"
 	depends on USB
diff --git a/drivers/net/wireless/realtek/rtw88/Makefile b/drivers/net/wireless/realtek/rtw88/Makefile
index 6105c2745bda..82979b30ae8d 100644
--- a/drivers/net/wireless/realtek/rtw88/Makefile
+++ b/drivers/net/wireless/realtek/rtw88/Makefile
@@ -59,6 +59,9 @@ rtw88_8821c-objs		:= rtw8821c.o rtw8821c_table.o
 obj-$(CONFIG_RTW88_8821CE)	+= rtw88_8821ce.o
 rtw88_8821ce-objs		:= rtw8821ce.o
 
+obj-$(CONFIG_RTW88_8821CS)	+= rtw88_8821cs.o
+rtw88_8821cs-objs		:= rtw8821cs.o
+
 obj-$(CONFIG_RTW88_8821CU)	+= rtw88_8821cu.o
 rtw88_8821cu-objs		:= rtw8821cu.o
 
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821cs.c b/drivers/net/wireless/realtek/rtw88/rtw8821cs.c
new file mode 100644
index 000000000000..a359413369a4
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821cs.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright(c) Martin Blumenstingl <martin.blumenstingl@...glemail.com>
+ */
+
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/module.h>
+#include "main.h"
+#include "rtw8821c.h"
+#include "sdio.h"
+
+static const struct sdio_device_id rtw_8821cs_id_table[] =  {
+	{
+		SDIO_DEVICE(SDIO_VENDOR_ID_REALTEK,
+			    SDIO_DEVICE_ID_REALTEK_RTW8821CS),
+		.driver_data = (kernel_ulong_t)&rtw8821c_hw_spec,
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(sdio, rtw_8821cs_id_table);
+
+static struct sdio_driver rtw_8821cs_driver = {
+	.name = "rtw_8821cs",
+	.probe = rtw_sdio_probe,
+	.remove = rtw_sdio_remove,
+	.id_table = rtw_8821cs_id_table,
+	.drv = {
+		.pm = &rtw_sdio_pm_ops,
+		.shutdown = rtw_sdio_shutdown,
+	}
+};
+module_sdio_driver(rtw_8821cs_driver);
+
+MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@...glemail.com>");
+MODULE_DESCRIPTION("Realtek 802.11ac wireless 8821cs driver");
+MODULE_LICENSE("Dual BSD/GPL");
-- 
2.40.0

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